Greenough 4A 10.5" Quad Rear This model has a fuller

This model has a fuller outline with the wide point pushed up a little from center

adding maneuverability without sacrificing any speed

Easy to carry molded handle

Glen and Kathy De Witt

375") x 18

Greenough 4A 10.5" Quad Rear This model has a fullerThere is a reason this is the most iconic, functional and versatile single fin available it works on just about anything! The Greenough 4 A has been our bread and butter for close to 40 years now, and is still the most popular single fin design there is. A truly well balanced fin the full base coupled with the tapering, moderately flexible tip provides a solid amount of drive off the bottom, and an acute responsiveness through arcing turns. Designed